Chess, you can play for free at open source lichess.org. Splitgate(free to download and play) if you want some action. You may not be the best or most accurate

Chess, you can play for free at open source lichess.org. Splitgate(free to download and play) if you want some action. You may not be the best or most accurate shooter, but using portals and thinking can bring you up the leaderboard more quickly than just beeing good at aiming.